Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
Alpha 7 IV is 2.7 years newer.
Wins
Lumix S1R
Wins
Alpha 7 IV
5 categories tied
TL;DR — Key differences
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 40 frames)
- BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 150 Mbps)
- BAlpha 7 IV has higher AF points / zones (759 vs 225)
- BAlpha 7 IV has higher ISO max (native) (51,200 vs 25,600)
- ALumix S1R has higher EVF resolution (5,760,000 vs 3,686,400)
Key specs at a glance
Size and weight, to scale
Lumix S1R
149 × 110 × 97 mm
1020 g (2.25 lb / 35.98 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
Lumix S1R is 18mm wider, 14mm taller, and 17mm thicker than Alpha 7 IV.
Lumix S1R is 362 g heavier than Alpha 7 IV.
Depth (front-to-back): 97mm Lumix S1R · 80mm Alpha 7 IV
Sensor size, to scale
Lumix S1R
36 × 24 mm · Full Frame
864 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
Lumix S1R: mount data unavailable
Alpha 7 IV
✓ more lensesSony E
350+
native lenses available
Counts include current first-party and major third-party native autofocus lenses.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose
Lumix S1R
AF low-light limit
-6 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 148.9, 110, 96.7
Codecs
Adds MP4, AVCHD
Subject recognition
Adds Face, Eye
Card types
Adds XQD
EVF resolution
5,760,000 vs 3,686,400 — higher is better
Resolution
47.3 MP vs 33 MP — higher is better
IBIS effectiveness
6 stops vs 5.5 stops — higher is better
Reasons to choose
Alpha 7 IV
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
RAW buffer depth
828 frames vs 40 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
AF points / zones
759 vs 225 — higher is better
Subject recognition
Adds Bird, Insect, Car/Train…
AA filter
Only Alpha 7 IV supports it
ISO max (native)
51,200 vs 25,600 — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 60 fps
- ✓In-body stabilization — Both support in-body stabilization
- ✓Weather sealing — Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Lumix S1R
Pros
- ✓47MP
- ✓High detail
- ✓L-mount
Cons
- –Contrast AF era
- –Heavy
- –Superseded
Alpha 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, Lumix S1R or Alpha 7 IV?
Alpha 7 IV scores 8.0/10 versus 3.0/10 for Lumix S1R — Bird AF subject recognition.
What's the resolution difference between the Lumix S1R and Alpha 7 IV?
Lumix S1R is 47.3 MP and Alpha 7 IV is 33 MP, so the Lumix S1R captures more detail for cropping and large prints.
Do the Lumix S1R and Alpha 7 IV have in-body image stabilization?
Lumix S1R has 6-stop in-body image stabilization, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the Lumix S1R or the Alpha 7 IV?
Lumix S1R reaches 9 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the Lumix S1R and Alpha 7 IV?
Lumix S1R weighs 1020 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 362 g lighter.
Do the Lumix S1R and Alpha 7 IV record 4K video?
Lumix S1R: 4K up to 60p. Alpha 7 IV: 4K up to 60p.
Are the Lumix S1R and Alpha 7 IV weather sealed?
Lumix S1R: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 380 shots (CIPA) for the Lumix S1R and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
Lumix S1R launched at $3,699 and Alpha 7 IV at $2,499. The Alpha 7 IV is $1,200 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Panasonic and Sony press materials.